How to tidy this string

"zhong zeng" <[email protected]> Thu, 27 Mar 2008 12:22:50 +0800

Newsgroups	gmane.comp.web.html-tidy.user
Message-ID	<[email protected]>

HI,all
   I want to tidy this string to XML . the below this my example
  string: &reg;中文
 the tidy result is :
  <html>
<head>
<meta name="generator"
content="HTML Tidy for Windows (vers 21 March 2007), see www.w3.org" />
<title></title>
</head>
<body> 形?/body>
</html>

 and my tidy config is:
 tidy-mark: n
clean: y
doctype: auto
drop-empty-paras: y
join-classes: y
join-styles: y
logical-emphasis: y
merge-divs: y
output-xml: y
indent: auto
indent-spaces: 2
markup: y
wrap: 0
char-encoding: big5

Who can Help me ?
thanks !
Jezz